US931399A - Cable-hanger clamp. - Google Patents

Description

S. B. d; G. 15K..n DUSINBERRE. UABLB HANGER CLAMP.

APPLICATION FILED DBO. 9, i907.

931 ,399. Patented Aug. 17, 1909.

UNITED sTATEs PATENT OEEICE.

SAMUEL B. -Dus1NBEna, or Prr'rssURo, rENNsY LVANIA, AND GEORGE B. DUSINBERRE, OE CLEVELAND, OHIO, .issIoNoRs To WESTINGHOUSE ELECTRIC a MANUFACTURING COMPANY, A CORPORATION oF PENNSYLVANIA.

CABLE-Hassan ouali".

specification 0i Letrn recent'.

Patented Aug. 17, .1 90D.

Application ined December 9, iaoi. semi No. 40am.

clamp.

In the accoinpan inv drawin Figure 1 is a side elevation o allian er ar with the" clamping element remove and Fig. 2 is an edge view partiall in vertical section showing the hanger an clamp attached toa inessenger Wire. Fig. 3 isa ers ective view of the movable element of t is Orm of clamp, Fig. 4 is a cross-section of the hanger bar, and Fiv. 5 is a 1an view of a v ortion of the blank lfrom which the movab e part of the clamp is made. Fig. 6 illustrates a'modified construction having teeth instead of cornigations. Fig. 7 shows a blank, and Fig. 8 a perspective view of .another-forni of our invention. Fi 9 is Aa further modlication. 4 While the invention is of course ap licable tornany other uses it is here shown, or illus" tration, as especially adapted to the hanging of an electric trolley wire from a messenger. Wire or cable in the eatenary type of construction. .Heretofore for Icatenary structures, han ers )have een either of fixed length or e e the adjustment 4of 'length lhas'` been de endent upon screws Vfand nuts or similar evices, whereas we employ an adinstable leverage member which is posi tivel locked in place u on the main bar Aof the anger by means O Athe structural fea' tures of the said parts. Thus, in the form shown in Fig. 1, the main ,hanger bai' 8 4is provided with a slot 9 and the surface oflits up# r portion is rouglienedon its front and rear aces as by'corrugations 10..y The bottom of the anger is, provided with any desired means for attaching it to a trolley wire clamp 11, as 'will be understood.. To attaoliithe bar 8 to the messenger wire M, we here ein loy a lever clamp 12 Awhich ',loped, as s 'iown,

loose.

and4 has a notched head 13 which may 'be passed through the slot '9 of the bar 8 to secure the .wire to the bar when the leverolam is turnedndowjn into .a substantially vertc' position. The tail `end of the clamp 12 is provided Ywith 'an convenient 'means for olding it against t e bar 8, after it has been looped over the messenger wire M, the means herej illustrated bein a screw. or-bolt. 14 Preferably, we provi e the head4 13 of tho-l l ver clamp 12 with backward projections 13'* which may hook over the outside edges of the bar 8 and thus revent the slot 9 from spreading open. t will beseen that the bar 8 is .clamped between the head 113 and the 'shoulders 15, which res ectively engage. theV front and rear faces -of t Ye bar and, y propclinationof the head 13, beiliiade secure even u on a straight aving vsmooth faces. :Iowever, wejprefer to use a rougliened bar for this form, either as illustrated in Fig. 6,

which shows teeth 10 upon the bar 8, or else by corrngating the bars, as first described. In some eases, it is preferable vto make the corrugations laie enough to receive the messenger Wire as shown in Fie. 2.

In the form shown in Figs. 7 andJS, we em-` ploy a hanger bar 1 6 of channel form rand the 'clamp member 17 has 'an opening to receive the barl 16 and a tongue 1-8 which pro'eots, as a wedge,` between the' flanges ofV tlie' bar. The tongue 18 is bent downward slightly to insure a strong lever and wedge action as thetail vof the member isdrawn down.

It will be seen that, in each of the construc- ,tions shown,,the`downward stress upon the bai-f8 does not come u on the fastening- 14- but is taken" directly y the head of `the clamping member 12, 1 7, which is prevented from slipping gagement With'the 4corru and 2 or the teeth 10 of ig. 6,01` by, Vof the action of the Wedge 18 tif-Figs. 7! By reason' of the resiliency ofthe tail of member12, Wires of dierentsi'ze's ma y p clamped, and the resilient pull upon the b olt 14 prevents it from i'att ing or becoming It will, of 'oouxjse,.be evident thatthe posil `tion ofthe clamping member and the messengei wire with respect to the trolley wire may be readily adjusted.

on thebar 8 by reason of its 4en- 2 ations 1() of losV end'tlie rear fave of the har with n, leverage demping action, and ineens for holdingr the teil of the clamping lever against the suspen- :non bar.

2. A clamp comprising n har having n longitudinal slot, a lever member lia-ving u neck lifveated in said slot und u heed and shoulders in respective engagement. with the front and the rear face of the bar, and means for holding down the tail of said lever member.

A clampv comprising u roughened bin' iieving a longitudinal slot, end e gripping inver havin a, neckloceted in said slot and a head and `s oulders which respectively engege the front and. the rear face ol the bar to positively clamp the lever against longitudir-nl movement when its free end is held down.

f1. A clamp comprising a bar having ay longitudinal slot, and a leverage member having (i. A elunp eonilln'ising n bar, and n lover which engages bot 1 the front and the rem f nce of the bur with n lever action, unil means for holding grlown the teil of the lever.

7. A hanger (':cnnprising n bar and :in :idf

` justable clamping lever one end ol' which cngages both the front and the rear face of said bei' and the other end of which is leilec'teil toward and elnmied to said bar.

In witness whereof We have hereunto signed our naines in the presence of the two subscribed Witnesses.

SAMUEL B. DUSINBERHE. GEORGE B. llUSINBIClHil.

Wi tnessee:

L. BUnnlnGn, lll'. Timun.

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